.

styles/less/ui/countdown/countdown-edit.less

@@ -102,6 +102,16 @@
                                 border: 1px solid light-dark(@dark, @beige);
                                 border-radius: 3px;
                             }
+
+                            .countdown-edit-loop {
+                                position: relative;
+
+                                .loop-marker {
+                                    position: absolute;
+                                    top: -4px;
+                                    font-size: 10px;
+                                }
+                            }
                         }
                     }